GitLab

I am no longer active in this area, and I changed OWNERS folders to reflect
that. I added myself as a legacy owner on some folders and added guidou@ for
some that have no active owner left.

Change-Id: Id32844a94e29678b7f1c79509dc368b614bcdc44
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1585098Reviewed-by: Guido Urdaneta <guidou@chromium.org>
Reviewed-by: Daniele Castagna <dcastagna@chromium.org>
Commit-Queue: Emircan Uysaler <emircan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#654885}